/
genesis.go
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/
genesis.go
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package gov
import (
"bytes"
"fmt"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/gov/types"
)
const (
// Default period for deposits & voting
DefaultPeriod time.Duration = 86400 * 2 * time.Second // 2 days
)
// GenesisState - all staking state that must be provided at genesis
type GenesisState struct {
StartingProposalID uint64 `json:"starting_proposal_id" yaml:"starting_proposal_id"`
Deposits Deposits `json:"deposits" yaml:"deposits"`
Votes Votes `json:"votes" yaml:"votes"`
Proposals []Proposal `json:"proposals" yaml:"proposals"`
DepositParams DepositParams `json:"deposit_params" yaml:"deposit_params"`
VotingParams VotingParams `json:"voting_params" yaml:"voting_params"`
TallyParams TallyParams `json:"tally_params" yaml:"tally_params"`
}
// NewGenesisState creates a new genesis state for the governance module
func NewGenesisState(startingProposalID uint64, dp DepositParams, vp VotingParams, tp TallyParams) GenesisState {
return GenesisState{
StartingProposalID: startingProposalID,
DepositParams: dp,
VotingParams: vp,
TallyParams: tp,
}
}
// get raw genesis raw message for testing
func DefaultGenesisState() GenesisState {
minDepositTokens := sdk.TokensFromConsensusPower(10)
return GenesisState{
StartingProposalID: 1,
DepositParams: DepositParams{
MinDeposit: sdk.Coins{sdk.NewCoin(sdk.DefaultBondDenom, minDepositTokens)},
MaxDepositPeriod: DefaultPeriod,
},
VotingParams: VotingParams{
VotingPeriod: DefaultPeriod,
},
TallyParams: TallyParams{
Quorum: sdk.NewDecWithPrec(334, 3),
Threshold: sdk.NewDecWithPrec(5, 1),
Veto: sdk.NewDecWithPrec(334, 3),
},
}
}
// Checks whether 2 GenesisState structs are equivalent.
func (data GenesisState) Equal(data2 GenesisState) bool {
b1 := types.ModuleCdc.MustMarshalBinaryBare(data)
b2 := types.ModuleCdc.MustMarshalBinaryBare(data2)
return bytes.Equal(b1, b2)
}
// Returns if a GenesisState is empty or has data in it
func (data GenesisState) IsEmpty() bool {
emptyGenState := GenesisState{}
return data.Equal(emptyGenState)
}
// ValidateGenesis checks if parameters are within valid ranges
func ValidateGenesis(data GenesisState) error {
threshold := data.TallyParams.Threshold
if threshold.IsNegative() || threshold.GT(sdk.OneDec()) {
return fmt.Errorf("Governance vote threshold should be positive and less or equal to one, is %s",
threshold.String())
}
veto := data.TallyParams.Veto
if veto.IsNegative() || veto.GT(sdk.OneDec()) {
return fmt.Errorf("Governance vote veto threshold should be positive and less or equal to one, is %s",
veto.String())
}
if !data.DepositParams.MinDeposit.IsValid() {
return fmt.Errorf("Governance deposit amount must be a valid sdk.Coins amount, is %s",
data.DepositParams.MinDeposit.String())
}
return nil
}
// InitGenesis - store genesis parameters
func InitGenesis(ctx sdk.Context, k Keeper, supplyKeeper SupplyKeeper, data GenesisState) {
k.setProposalID(ctx, data.StartingProposalID)
k.setDepositParams(ctx, data.DepositParams)
k.setVotingParams(ctx, data.VotingParams)
k.setTallyParams(ctx, data.TallyParams)
// check if the deposits pool account exists
moduleAcc := k.GetGovernanceAccount(ctx)
if moduleAcc == nil {
panic(fmt.Sprintf("%s module account has not been set", types.ModuleName))
}
var totalDeposits sdk.Coins
for _, deposit := range data.Deposits {
k.setDeposit(ctx, deposit.ProposalID, deposit.Depositor, deposit)
totalDeposits = totalDeposits.Add(deposit.Amount)
}
for _, vote := range data.Votes {
k.setVote(ctx, vote.ProposalID, vote.Voter, vote)
}
for _, proposal := range data.Proposals {
switch proposal.Status {
case StatusDepositPeriod:
k.InsertInactiveProposalQueue(ctx, proposal.ProposalID, proposal.DepositEndTime)
case StatusVotingPeriod:
k.InsertActiveProposalQueue(ctx, proposal.ProposalID, proposal.VotingEndTime)
}
k.SetProposal(ctx, proposal)
}
// add coins if not provided on genesis
if moduleAcc.GetCoins().IsZero() {
if err := moduleAcc.SetCoins(totalDeposits); err != nil {
panic(err)
}
supplyKeeper.SetModuleAccount(ctx, moduleAcc)
}
}
// ExportGenesis - output genesis parameters
func ExportGenesis(ctx sdk.Context, k Keeper) GenesisState {
startingProposalID, _ := k.GetProposalID(ctx)
depositParams := k.GetDepositParams(ctx)
votingParams := k.GetVotingParams(ctx)
tallyParams := k.GetTallyParams(ctx)
proposals := k.GetProposalsFiltered(ctx, nil, nil, StatusNil, 0)
var proposalsDeposits Deposits
var proposalsVotes Votes
for _, proposal := range proposals {
deposits := k.GetDeposits(ctx, proposal.ProposalID)
proposalsDeposits = append(proposalsDeposits, deposits...)
votes := k.GetVotes(ctx, proposal.ProposalID)
proposalsVotes = append(proposalsVotes, votes...)
}
return GenesisState{
StartingProposalID: startingProposalID,
Deposits: proposalsDeposits,
Votes: proposalsVotes,
Proposals: proposals,
DepositParams: depositParams,
VotingParams: votingParams,
TallyParams: tallyParams,
}
}